The fine pigments in Lyra's coloured leads are soft and blendable, and can be dissolved almost completely with water. Apply them directly and then soften them with a brush. Create shades that range from opaque to nearly transparent. Lyra Aquarell Pencils are packed in durable tin boxes, each containing a beautiful assortment of shades. Pencils are pre-sharpened. Leads are 4 mm in diameter, quite thick for a coloured pencil.